4066108821 has 32 divisors (see below), whose sum is σ = 6400051200. Its totient is φ = 2546510400.

The previous prime is 4066108799. The next prime is 4066108883. The reversal of 4066108821 is 1288016604.

It is not a de Polignac number, because 4066108821 - 2⁵ = 4066108789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4066108121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41205 + ... + 99146.

It is an arithmetic number, because the mean of its divisors is an integer number (200001600).

Almost surely, 2^4066108821 is an apocalyptic number.

It is an amenable number.

4066108821 is a deficient number, since it is larger than the sum of its proper divisors (2333942379).

4066108821 is a wasteful number, since it uses less digits than its factorization.

4066108821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140426 (or 140420 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 4066108821 is about 63766.0475566739. The cubic root of 4066108821 is about 1596.0984131468.

The spelling of 4066108821 in words is "four billion, sixty-six million, one hundred eight thousand, eight hundred twenty-one".